added check for version mismatch

Author: sergioteula

.pre-commit-config.yaml

@@ -52,3 +52,10 @@ repos:
         entry: "bash -c 'set -a && source .env 2>/dev/null; set +a && uv run pytest -rs --cov=amazon_paapi'"
         types_or: [python]
         pass_filenames: false
+
+      - id: version-check
+        name: Check version consistency
+        language: system
+        entry: uv run python scripts/check_version.py
+        files: (CHANGELOG\.md|pyproject\.toml|docs/conf\.py)$
+        pass_filenames: false

pyproject.toml

@@ -72,6 +72,9 @@ exclude = ["amazon_paapi/sdk/*", "docs/*"]
     "PT027",  # Use pytest.raises instead of unittest-style
     "SLF001", # Private member accessed
 ]
+"scripts/*" = [
+    "T201", # print found (CLI scripts use print)
+]
 "api.py" = ["PLR0913"] # Too many arguments to function call
 
 [tool.ruff.format]

scripts/check_version.py

@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+"""Check that version numbers are consistent across the project."""
+
+from __future__ import annotations
+
+import re
+import sys
+from pathlib import Path
+
+
+def get_changelog_version() -> str | None:
+    """Extract the latest non-Unreleased version from CHANGELOG.md."""
+    changelog = Path("CHANGELOG.md").read_text()
+    match = re.search(r"## \[(\d+\.\d+\.\d+)\]", changelog)
+    return match.group(1) if match else None
+
+
+def get_pyproject_version() -> str | None:
+    """Extract version from pyproject.toml."""
+    pyproject = Path("pyproject.toml").read_text()
+    match = re.search(r'^version = "(\d+\.\d+\.\d+)"', pyproject, re.MULTILINE)
+    return match.group(1) if match else None
+
+
+def get_docs_version() -> str | None:
+    """Extract release version from docs/conf.py."""
+    conf = Path("docs/conf.py").read_text()
+    match = re.search(r'^release = "(\d+\.\d+\.\d+)"', conf, re.MULTILINE)
+    return match.group(1) if match else None
+
+
+def main() -> int:
+    """Check version consistency across project files."""
+    changelog_version = get_changelog_version()
+    pyproject_version = get_pyproject_version()
+    docs_version = get_docs_version()
+
+    if not changelog_version:
+        print("❌ Could not find version in CHANGELOG.md")
+        return 1
+
+    errors = []
+
+    if pyproject_version != changelog_version:
+        errors.append(
+            f"  pyproject.toml: {pyproject_version} (expected {changelog_version})"
+        )
+
+    if docs_version != changelog_version:
+        errors.append(
+            f"  docs/conf.py:   {docs_version} (expected {changelog_version})"
+        )
+
+    if errors:
+        print(f"❌ Version mismatch! CHANGELOG.md has version {changelog_version}")
+        print("\nMismatched files:")
+        for error in errors:
+            print(error)
+        print("\nPlease update all version numbers to match.")
+        return 1
+
+    print(f"✅ All versions match: {changelog_version}")
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())